This book decribes an overview of XML and related specifications
such as RDF and DOM. The syntax of XML is presented, but the
main focus of this book is XML as an kernel of the WWW
and electronic publishing.

Using Jon Bosak's examples in his article "XML, Java, and
the future of Web", the first chapter demonstrates
limitations of HTML and introduces a metalanguage XML as a
promissing solution. The second chapter describes CDF and
OSD as XML applications. The third chapter gives an overview of XML
language constructs. The fourth chapter gives an overview
of XLL and XSL. The fifth chapter describes XML editors,
browsers, database systems, formatters, converters, etc.
The sixth chapter presents two small XML applications and
demonstrates how they are constructed. The seventh chapter
compares XML and other structured documents such as SGML:
Advantages and disadvantages of SGML are summarized. Then,
how XML overcomes these disadvantages is presented; in
particular, the motivation of the namespace extension is
described. The last chapter gives an overview of RDF and
DOM. The first appendix gives I18N of XML.